Function blit

docs/app/js/sanddance-app.js:63858–63891

(source, target)

    return texture;
}
function blit(source, target) {
    var _ref6 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {}, _ref6$sourceAttachmen = _ref6.sourceAttachment, sourceAttachment = _ref6$sourceAttachmen === void 0 ? 36064 : _ref6$sourceAttachmen, _ref6$sourceX = _ref6.sourceX0, sourceX0 = _ref6$sourceX === void 0 ? 0 : _ref6$sourceX, _ref6$sourceY = _ref6.sourceY0, sourceY0 = _ref6$sourceY === void 0 ? 0 : _ref6$sourceY, sourceX1 = _ref6.sourceX1, sourceY1 = _ref6.sourceY1, _ref6$targetX = _ref6.targetX0, targetX0 = _ref6$targetX === void 0 ? 0 : _ref6$targetX, _ref6$targetY = _ref6.targetY0, targetY0 = _ref6$targetY === void 0 ? 0 : _ref6$targetY, targetX1 = _ref6.targetX1, targetY1 = _ref6.targetY1, _ref6$color = _ref6.color, color = _ref6$color === void 0 ? true : _ref6$color, _ref6$depth = _ref6.depth, depth = _ref6$depth === void 0 ? false : _ref6$depth, _ref6$stencil = _ref6.stencil, stencil = _ref6$stencil === void 0 ? false : _ref6$stencil, _ref6$mask = _ref6.mask, mask = _ref6$mask === void 0 ? 0 : _ref6$mask, _ref6$filter = _ref6.filter, filter = _ref6$filter === void 0 ? 9728 : _ref6$filter;
    var _getFramebuffer4 = getFramebuffer(source), srcFramebuffer = _getFramebuffer4.framebuffer, deleteSrcFramebuffer = _getFramebuffer4.deleteFramebuffer;
    var _getFramebuffer5 = getFramebuffer(target), dstFramebuffer = _getFramebuffer5.framebuffer, deleteDstFramebuffer = _getFramebuffer5.deleteFramebuffer;
    (0, _utils.assert)(srcFramebuffer);
    (0, _utils.assert)(dstFramebuffer);
    var gl = dstFramebuffer.gl, handle = dstFramebuffer.handle, width = dstFramebuffer.width, height = dstFramebuffer.height, readBuffer = dstFramebuffer.readBuffer;
    (0, _webglUtils.assertWebGL2Context)(gl);
    if (!srcFramebuffer.handle && sourceAttachment === 36064) sourceAttachment = 1028;
    if (color) mask |= 16384;
    if (depth) mask |= 256;
    if (stencil) mask |= 1024;
    if (deleteSrcFramebuffer || deleteDstFramebuffer) {
        if (mask & 1280) {
            mask = 16384;
            (0, _gltools.log).warn("Blitting from or into a Texture object, forcing mask to GL.COLOR_BUFFER_BIT")();
        }
    }
    (0, _utils.assert)(mask);
    sourceX1 = sourceX1 === undefined ? srcFramebuffer.width : sourceX1;
    sourceY1 = sourceY1 === undefined ? srcFramebuffer.height : sourceY1;
    targetX1 = targetX1 === undefined ? width : targetX1;
    targetY1 = targetY1 === undefined ? height : targetY1;
    var prevDrawHandle = gl.bindFramebuffer(36009, handle);
    var prevReadHandle = gl.bindFramebuffer(36008, srcFramebuffer.handle);
    gl.readBuffer(sourceAttachment);
    gl.blitFramebuffer(sourceX0, sourceY0, sourceX1, sourceY1, targetX0, targetY0, targetX1, targetY1, mask, filter);
    gl.readBuffer(readBuffer);
    gl.bindFramebuffer(36008, prevReadHandle || null);
    gl.bindFramebuffer(36009, prevDrawHandle || null);
    if (deleteSrcFramebuffer) srcFramebuffer["delete"]();
    if (deleteDstFramebuffer) dstFramebuffer["delete"]();
    return dstFramebuffer;
}
function getFramebuffer(source) {
    if (!(source instanceof (0, _framebufferDefault.default))) return {
        framebuffer: (0, _textureUtils.toFramebuffer)(source),